Home / 11,142.19-15,377.13-6,363.59

Finding the Fourth Proportional to 11,142.19, 15,377.13 and 6,363.59

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Solution

The fourth proportional to 11,142.19, 15,377.13 and 6,363.59 is: 8,782.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,142.19 : 15,377.13 = 6,363.59 : x
  2. Step 2: Convert to fraction form
    11,142.19/15,377.13 = 6,363.59/x
  3. Step 3: Cross multiply
    11,142.19x = 15,377.13 × 6,363.59
  4. Step 4: Simplify right side
    11,142.19x = 97,853,750.70
  5. Step 5: Solve for x
    x = 97,853,750.70/11,142.19
  6. Step 6: Final answer
    x = 8,782.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.